MS Thesis Defense by John A. Spirito

Topic:   Development of an Acoustical Beam Steering System for an Underwater Communication Network

Date:  Tuesday, August 13, 2013

Time: 1pm

Location:  Lester W. Cory Conference Room, SENG (Group II) - Room 213A


The project presented documents the development of an acoustically controlled directional communication buoy prototype. The development involved studying the behavior of directed acoustic transducers in an underwater environment.  The system developed incorporated motion control – namely motor rotational operation by microprocessor control, while testing the performance of transducers. The analysis included the transducer performance for directed communication. Signal analysis of acoustic communication signals for quality and correctness was observed.

The developed system is made to operate in a stand alone battery operated environment. The analysis of acoustic communication underwater signals angular reception was observed and its bearing was calculated by the microprocessor. Each system is considered a communication node and has the functionality of monitoring and directionally transferring acoustic data. The system maybe attached to a buoy or autonomous vehicle. When this system is connected with an acoustic modem, it is the foundation of a multi-hop underwater communication network. The result of several nodes is a communication network that can transfer data across the ocean similar to the way cellular towers operate.

Note:  All ECE Graduate Students are ENCOURAGED to attend. 

All interested parties are invited to attend. Open to the public.

Committee Members:  Dr. Yifei Li and Dr. Liudong Xing